This is the receiver circuit for the previous remote control published in the same Radio Electronics magazine of November 1987. The sensor is a common phototransistor.
This circuit makes the RIAA equalization for signals obtained from a turntable for signal recovery in other...
The integrated circuit used in this 90's circuit is not common today, but the configuration can be...
Another application circuit for the NE567 is shown in the figure. It consists of a decoder for...